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Con Ed is a holding company for Consolidated Edison of New York, or CECONY, and Orange & Rockland, or O&R. These utilities provide steam, natural gas, and electricity to customers in southeastern New York—including New York City—and small parts of New Jersey. The two utilities generate nearly all of Con Ed's earnings following the sale of its clean energy business to RWE in early 2023.

Public Service Enterprise Group is the holding company for a regulated utility (PSE&G) and other nonregulated businesses such as nuclear power generation and clean energy projects. PSE&G provides regulated gas and electricity delivery services in New Jersey to a combined 4.2 million customers. Public Service Enterprise Group also operates the Long Island Power Authority system. In 2022, the company sold its gas and oil power plants in the mid-Atlantic, New York, and the Northeast.

Essential Utilities is a Pennsylvania-based holding company for US water, wastewater, and natural gas distribution utilities. The company's water business serves 3 million people in eight states. Nearly three fourths of its water earnings come from Pennsylvania, primarily suburban Philadelphia. Its Peoples subsidiary serves more than 740,000 gas distribution customers in Pennsylvania and Kentucky. Essential exited its noncore competitive water and energy services businesses.

Pinnacle West is a holding company whose principal subsidiary is Arizona Public Service, a vertically integrated electric utility that serves 1.4 million customers across a 35,000-square-mile territory in central Arizona, including Phoenix. APS owns or leases more than 6 gigawatts of power generation capacity, including a 29% ownership stake in the largest nuclear plant in the US, Palo Verde. About half of the electricity that APS supplies to customers comes from clean energy sources, including nuclear.